So, while I admit that there is still plenty in the world to want to be independent from -- petroleum, warmongering madmen, hay fever -- in this era of global interconnectedness it seems like it might be a good idea to add a holiday to our calendar, a holiday called Dependence Day.

Dependence on the cache can hurt you severely if lots of memcached servers fail (and they do fail), Leaving you in a ‘cold cache’ situation where it can take hours to repopulate your working set back into the cache pool.

The report, entitled Ensuring America's Freedom of Movement: a National Security Imperative to Reduce America's Oil Dependence, describes America's reliance on imported oil as the "Achilles heel of our national security".